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Omron K8AB-VS Quick Start Manual

Single-phase voltage relay
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Single-phase Voltage Relay
K8AB-VS
Ideal for voltage monitoring for industrial
facilities and equipment.
• Monitor for overvoltages or undervoltages.
• Manual resetting and automatically resetting supported by one
Relay.
• One SPDT output relay, 6 A at 250 VAC (resistive load).
• Output relay can be switched between normally open and
normally closed.
• Process control signal (0 to 10 V) and current splitter input
supported.
• Output status can be monitored using LED indicator.
• Input frequency of 40 to 500 Hz supported.
Model Number Structure
■ Model Number Legend
K8AB-@@
1
2 3
4
1. Basic Model
K8AB:
Measuring and Monitoring Relays
2. Functions
VS:
Single-phase Voltage Relay (One-sided operation)
3. Measuring Current
1:
6 to 60 mV AC/DC, 10 to 100 mV AC/DC, 30 to 300 mV AC/DC
2:
1 to 10 V AC/DC, 3 to 30 V AC/DC, 15 to 150 V AC/DC
3:
20 to 200 V AC/DC, 30 to 300 V AC/DC, 60 to 600 V AC/DC
4. Supply Voltage
24 VDC:
24 VDC
24 VAC:
24 VAC
100-115 VAC: 100 to 115 VAC
200-230 VAC: 200 to 230 VAC
Cat. No. N143-E1-02
Single-phase Voltage Relay
K8AB-VS
1

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Summary of Contents for Omron K8AB-VS

  • Page 1 Single-phase Voltage Relay K8AB-VS Ideal for voltage monitoring for industrial facilities and equipment. • Monitor for overvoltages or undervoltages. • Manual resetting and automatically resetting supported by one Relay. • One SPDT output relay, 6 A at 250 VAC (resistive load).

  • Page 2: Ordering Information

    Note: Models with a 24-VDC power supply have a non-isolated power supply. The inputs and power supply are connected internally so the K8AB-VS will not operate normally if an unwanted current path exists. If an unwanted current path exists, use a K8AB AC Power Supply or isolate with an external power supply.

  • Page 3: Ratings And Specifications

    Unit will not operate normally. If an unwanted current path exists, use a K8AB model with an AC power supply or use an isolated DC power supply. K8AB-VS Cat. No. N143-E1-02...
  • Page 4 Shock resistance 100 m/s , 3 times each in 6 directions along three axes (up/down, left/right, forward/backward) Degree of protection Terminal section: Finger protection Note: The reset value is valid only for automatic resets. K8AB-VS Single-phase Voltage Relay Cat. No. N143-E1-02...
  • Page 5 T1: Power ON lock (1 or 5 s) Note: The power ON lock prevents unnecessary alarms from being generated during the instable period when the power is first turned on. There is no relay output during timer operation. K8AB-VS Cat. No. N143-E1-02 Single-phase Voltage Relay...

  • Page 6: Setting Knobs

    8 mm max. 8 mm max. Recommended ferrules Phoenix Contact • Al 1,5-8BK (for AWG16) • Al 1-8RD (for AWG18) • Al 0,75-8GY (for AWG18) 2. Tightening torque Recommended: 0.49 N·m Maximum: 0.54 N·m K8AB-VS Single-phase Voltage Relay Cat. No. N143-E1-02...

  • Page 7: Dip Switch Settings

    Note: Models with DC power supply have a non-isolated power supply. The input and power supply terminals are connected internally so the K8AB-VS will not operate normally if an unwanted current path is created. If an unwanted current path exists, use a model with an AC power supply or isolate with an external power supply.

  • Page 8: Setting Method

    If the input voltage exceeds (or drops lower than) the voltage setting, the alarm indicator will start flashing for the set period and then stay lit. Dimensions (Unit: mm) Single-phase Voltage Relays K8AB-VS1 22.5 K8AB-VS2 K8AB-VS3 K8AB-VS Single-phase Voltage Relay Cat. No. N143-E1-02...

  • Page 9: Safety Precautions

    30 Vr.m.s with 42.4 V at peak or DC60V maximum. 2. When using a noise filter, check the voltage and current and Recommended power-supply: Model S8VS-06024@. (Omron install it as close to the product as possible. product) 3.
  • Page 10 Models with a DC power supply have a non-isolated power supply. The input and power supply are connected internally so the K8AB-VS@ will not operate normally if an unwanted current path exists. If an unwanted current path exists, use a K8AB model with an AC power supply or use an isolated DC power supply.
  • Page 11 K8AB-VS Cat. No. N143-E1-02 Single-phase Voltage Relay...

  • Page 12: Warranty And Application Considerations

    Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS.

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